Finding the Fourth Proportional to 4,869,689.94, 6,720,543.81 and 2,805,343.38
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Solution
The fourth proportional to 4,869,689.94, 6,720,543.81 and 2,805,343.38 is: 3,871,587.99
Step by Step Solution
- Step 1: Write the proportion equation
4,869,689.94 : 6,720,543.81 = 2,805,343.38 : x - Step 2: Convert to fraction form
4,869,689.94/6,720,543.81 = 2,805,343.38/x - Step 3: Cross multiply
4,869,689.94x = 6,720,543.81 × 2,805,343.38 - Step 4: Simplify right side
4,869,689.94x = 18,853,433,087,383.48 - Step 5: Solve for x
x = 18,853,433,087,383.48/4,869,689.94 - Step 6: Final answer
x = 3,871,587.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.